This is from Ben Witherington’s blog post. This is his defense of Luke 22.36-38, I don’t know if I agree with it yet, but I figured we could post it here, and we can benefit from it:
What about the famous text in Lk. 22.36-38 where Jesus seems to advise the disciples to go out and obtain a weapon? Again context is king here. Remember this is the same Jesus who: 1) advised that those who live by the sword will die by the sword and 2) who immediately put a stop to Peter’s violence against the high priest’s slave, and indeed reversed it’s effects by healing the man’s ear. So what is the meaning of this little story, taking into account the larger context of Jesus’ teaching? Vs. 37 is the key where Jesus quotes Is. 53.12—“he was numbered with the transgressors”. Jesus is saying to the disciples—you must fulfill your role as transgressors of what I have taught you!!! They must play the part of those who do exactly the opposite of what Jesus taught them in the Sermon on the Mount. The disciples become transgressors by seeking out weapons and then seeking to use them. This much is perfectly clear from the context for the disciples then go on to say “look Lord here is two swords”. They already have such weapons and Jesus responds in disgust to the fact that they are already transgressing his principles of non-violence by responding “that’s enough” (of this nonsense).
Clearly, Jesus knew that two swords would not be enough to hold off a Roman legion, so we must take his response as highly ironic not as straight forward. Either he says ironically “oh that will be plenty”, or more likely as I have suggested, he means “that will be enough” of this foolishness. Either way, there is absolutely no endorsement here by Jesus of his followers using weapons. Carrying weapons makes them fulfill the role of transgressors, as the citation of Is. 53.12 makes evident.